Big muscles whey protein isolate features a protein source with one of the highest biological values and is easy to digest, mix, and absorb. Big Muscles whey protein isolate has undergone microfiltrartion to remove the things you don't want like fat and lactose and retain higher concentrations of the things your body needs, like amino acids. Big muscles whey protein isolate is enhanced with core ingredients clinically shown to build more muscle and strength than whey protein alone.